TY  - Data
T1  - Data set of subglacial topography of Laohugou glacier in 2009
A1  - Li zhen
A1  - Liu Yushuo
DO  - 10.12072/ncdc.DIMaC.db0022.2020
PY  - 2020
DA  - 2020-12-17
PB  - National Cryosphere Desert Data Center
AB  - The data set includes serial number, longitude, latitude and thickness. The data set contains 310 measuring points. Ground penetrating radar (GPR) (pulse ekko pro100) is used for thickness measurement. Firstly, the propagation velocity of radar wave velocity in glacier ice is measured, and the related parameters of GPR are modified and set. The center frequency is 100MHz and the antenna distance is 4m. At the same time, the GPS positioning of the survey points is carried out. Protocol sharing is adopted. The data set contains four fields: serial number, longitude (unit: Degree (°)), latitude (unit: Degree (°)) and elevation (unit: meter (m), that is, glacier thickness of the current year). The space datum is WGS84, and the accuracy of radar thickness measurement is controlled within 1cm.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/849072b5-c372-48b5-9db9-e4e4a0a195da
ER  -